<template>
  <div>
       <!-- 面包屑导航 -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
      </el-breadcrumb>
      <!-- 卡片视图区域 -->
      <el-card>
           <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="width: 800px;height:400px;"></div>
      </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import _ from 'lodash'

export default {
    data(){
        return{
         // 需要合并的数据
        options: {
            title: {
            text: '用户来源'
            },
            tooltip: {
            trigger: 'axis',
            axisPointer: {
                type: 'cross',
                label: {
                backgroundColor: '#E9EEF3'
                }
            }
            },
            grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
            },
            xAxis: [
            {
                boundaryGap: false
            }
            ],
            yAxis: [
            {
                type: 'value'
            }
            ]
        }
        }
    },
    created(){

    },
    async mounted(){
        // 基于准备好的dom，初始化echarts实例
        var myChart = echarts.init(document.getElementById('main'));
        
       
        const {data:res}=await this.$http.get('reports/type/1')
        if(res.meta.status!=200) return this.$message.error('获取折线图数据失败');
        console.log(res.data);
        
        const result= _.merge(res.data,this.options)

        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result);
    },
    methods:{
        
    }
}
</script>

<style lang="less" scoped>

</style>